One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,6)(3,7,8,4)(9,10,12,14)(11,15,16,13)(18,20)(21,23)(25,26,30,32)(27,29,28,31)(1,3,5,8)(2,4,6,7)(11,16)(13,15)(17,18,22,20)(19,21,24,23)(25,27,30,28)(26,31,32,29)(1,3)(2,4)(5,8)(6,7)(9,10)(11,13)(12,14)(15,16)(17,19,22,24)(18,23,20,21)(25,28,30,27)(26,31,32,29)(1,3)(2,4)(5,8)(6,7)(9,11,12,16)(10,13,14,15)(17,20,22,18)(19,21,24,23)(1,4)(2,3)(5,7)(6,8)(9,10)(11,13)(12,14)(15,16)(17,21)(18,19)(20,24)(22,23)(25,29,30,31)(26,27,32,28)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.